Preheat the oven to 410 degrees. Line 2 baking sheets with silicone liners. Set aside.
Add butter and sugar to a large mixing bowl. Using a paddle attachment, cream the butter and sugar. Start creaming them together at low speed for 30 seconds. Increase speed to medium for an additional 30 seconds. Increase the speed to high for 30 more seconds. The butter/sugar mixture will appear light in color and fluffy.
Add one egg at a time, beating directly after adding. After adding each egg, blend the vanilla into the mixture.
Add in the red food coloring and cocoa powder, beating at low speed until mixed. Add both types of flour, baking soda, cornstarch, and salt to a large bowl. Whisk to mix. Slowly add the flour mixture to the butter mixture while the mixer is on low speed. Continue beating the mixture until a soft dough is made. With the mixer on low, beat in the chocolate chips until mixed.
Put in the refrigerator, uncovered until chilled for about 20 minutes. Weight out each ball of cookie dough until it weighs 6 oz. Using your hands, form the dough into a tall ball. Place 4 dough balls on the baking sheet, staggering each one. Press in additional chocolate chips. Return the remaining dough to the refrigerator until ready to be baked.
Bake one baking sheet at a time. Bake at 410 degrees for 8-11 minutes. Check to make sure the cookies are gooey in the center. Take out of the oven. Set aside to cool on the baking sheet for at least 30 minutes.
Using the white cookie icing, pipe a spider web coming off on the corner of the cookies.Using the black cookie icing, pipe lines on the sides of the chocolate chips on top to create spider legs Using the red cookie icing, pipe an hourglass shape in the center of the chocolate chip to make it look like a black widow Allow the icing to harden before enjoying!